diff --git a/.bcachefs_revision b/.bcachefs_revision
index 7a002c2e..7b12d288 100644
--- a/.bcachefs_revision
+++ b/.bcachefs_revision
@@ -1 +1 @@
-f26267fc82539ef3390cf2bb2bc818436dd504c7
+6a3927a96b2f362deccc7ee36e20e03f193a9e00
diff --git a/libbcachefs/super.c b/libbcachefs/super.c
index 4eaa4cee..670e9cdc 100644
--- a/libbcachefs/super.c
+++ b/libbcachefs/super.c
@@ -496,6 +496,7 @@ static void __bch2_fs_free(struct bch_fs *c)
 		for_each_possible_cpu(cpu)
 			kfree(per_cpu_ptr(c->btree_iters_bufs, cpu)->iter);
 
+	free_percpu(c->online_reserved);
 	free_percpu(c->btree_iters_bufs);
 	free_percpu(c->pcpu);
 	mempool_exit(&c->large_bkey_pool);
@@ -775,6 +776,7 @@ static struct bch_fs *bch2_fs_alloc(struct bch_sb *sb, struct bch_opts opts)
 			BIOSET_NEED_BVECS) ||
 	    !(c->pcpu = alloc_percpu(struct bch_fs_pcpu)) ||
 	    !(c->btree_iters_bufs = alloc_percpu(struct btree_iter_buf)) ||
+	    !(c->online_reserved = alloc_percpu(u64)) ||
 	    mempool_init_kvpmalloc_pool(&c->btree_bounce_pool, 1,
 					btree_bytes(c)) ||
 	    mempool_init_kmalloc_pool(&c->large_bkey_pool, 1, 2048) ||